Ash-sifting machine.



Patented July 10, 1917.

at are learn tin.

JULIUS T. FREY, OF DETROIT, MICHIGAJW.

ASH-SIFTING MACHINE.

Application filed October 3, 1916.

To all whom 2'25 may concern:

Be it known that I, JULIUS T. FREY, a citizen of the United States, residing at Detroit, in the county of lVayne and State of Michigan, have invented certain new and useful Improvements in Ash-sifting Machines, of which the following is a specification.

This invention relates to devices for sifting ashes and for like purposes, and has for one of its objects to improve the con struction and increase the efliciency and utility of devices of this character.

With these and other objects in View, the invention consists in certain novel features of construction as hereinafter shown and described and then specifically pointed out in the claims, and in the drawings lllustrative of the preferred embodiment of the invention.

Figure 1 is a vertical transverse sectional elevation i.

Fig. 2 is a longitudinal sectional elevation.

Fig. 3 is a detached perspective view on a reduced scale, of the loading hopper.

Fig. 4: is a sectional detail on a reduced scale, illustrating a modification in the construotion.

Corresponding and like parts are referred to in the following description and indicated in all the views of the drawings by the same reference characters.

The improved device comprises a casing or shell, represented as .a whole at 10, and constructed preferably of galvanized sheet metal and having a relatively large opening 11 in the upper end and with the bottom entirely open. The opening 11 is provided with a closure 12 hingedly united at 13 to the casing. The casing is provided with a relatively large opening 14: in the front and preferably provided with a sliding closure 15 operating in guideways, one of which is represented at 16. The opening 1 1 does not extend to the bottom of the casing but stops short thereof, and located within the casing below the lower line of the opening 14 is a receptacle 17 having a. bottom 17 of screen material.

Mounted for rotation through the casing is a shaft 18 having an operating crank 19 at one end externally of the casing. Mounted upon the shaft 18, within the casing, is a screening drum comprising imperforate Specification of Letters Patent.

Patented July 10, 191?.

Serial No. 123,556.

ends 20 and a cylinder of screen material 21, the screen material being supported upon the ends 20 by holding bands 22. Mounted upon the shaft 18 between the ends 20 of the drum and the adjacent walls of the easing 10 are spacing washers 23. Mounted upon the shaft 18 between the ends 20 of the drum is a tubular axle 2 1 having caps 25 at its ends to serve as supports between the terminals of the tubular member 24- and the ends 20. The tubular member 24L is immovably coupled to the shaft by holding pins or like devices 26. By this arrangement, it will be obvious that when the shaft 18 is rotated, the drum will be rotated therewith.

Formed in the screening material 21 of the drum is a feed opening covered by a swinging cover 27 formed of the same screening material as the body of the drum. The cover 27 is movably coupled to the body of the drum by hinges 28 or like devices so that the cover can swing upwardly through the opening 11, as shown by dotted lines in Fig. 1, to permit the material to be screened to be inserted into the drum, and likewise permit the material to be discharged from the drum when the latter is reversed in position.

Extending through the casing 10, slightly above the upper line of the screening drum, are holding rods 3132. A flexible member, for instance a chain 33, connected permanently at one end to the rod 31 and depends therefrom and around the lower face of the screening drum and out through the opening 11 and is adapted to be connected by one of its links to a pin 34: extending from the upper face of the casing. By this means, the flexible member may be supported in constant engagement with the lower part of the drum while the latter is being rotated. Surrounding the body of the drum is bearing band 35 which extends from the opposite edge of the opening in the drum, while a section of a similar band material 36 is connected to the closure 27 of the drum, the two band portions 35-36 being in alinement circumferentially of the drum and with which the flexible member 33 engages constantly as the drum is rotated and thus prevents friction or wear between the wires composing the screen material and the flexible member.

By this simple arrangement, as the drum contents of the drum. The drum may thus be rotated any required number of times to insure the complete screening of the material, the ashes and finer particles of the material passing through the screen material of the drum and of the receptacle 17. \Vhen the contents of the drum are to be discharged, the flexible element33 is disconnected fromthe holding pin 34: and permitted-to drop, thus releasing the closure 27, and when the drumis in its downward position the closure will open and permit the contents of the drum to escape into the receptacle 17 from which it may be discharged .by withdrawing the receptacle which is drawer like in form, 7

Then the material is to be deposited within the drum, the closure 12 is opened and the drum rotated until the closure 27 "is moved into upward position when the latter may be also opened into the position shown by dotted lines in Fig. 1. A feed hopper 37 is then inserted through the opening 11 of the. casing with its lower reduced end inserted through theopening in the drum. The hopper is supported by the edges of-the opening 11, and in position to enable the materialto be screened to be poured-therethrough into the drum. The hopper is then removed and the closures 1127 closedand the flexible element 33, which has been previously restored to its operative position, permits the drum to be rotated any required number of times without permitting the contents of the drum to escape. When the screening action is completed, the closure 27 may be released by releasing the flexible member, as before described.

In Fig. 4, a modification in the construction is shown, consisting in substituting for the drawer like receptacle 17 an inclined screen 38. The upper edge of the screen 7 member 38 is bent around a-holding rod 39 toprevent'corrosion, and may be of any re'- quired' size or capacity.

'or other support when not in use.

Having f thus described the invention, what is claimed as new is:

1. An apparatus of the class described comprising a casing, a screening drum mounted for rotation within the casing and havinga feed opening, a movable cover for the feed opening, and aflexible element suspended within the casing and bearing against the drum to hold the cover in closed; position during the rotation of the drum.

2. An apparatus of the class described comprising a casing having an opening, a screening drum mounted for rotation within the casing and having afeed opening, a movable cover for the feed opening, a flexible element suspended within the casing and bearing againstthe lower part of the drum to hold-the cover-in closed position against the drum while the drumispassing through the lower, portion of its path, and a feed hopper'supported inthe opening of the casing and extending through the opening of the drum.

3. An apparatus of the class described comprising a casing, a screening drum mounted for rotation within the casing and having a feed opening, a movable cover for the feed opening, a bearing band extending around the body of the drum, a bearing band carried-bythe-cover and in circumferential alinement with the bearing band of the drum, and a flexible element suspended within the casing and bearing against the bearing bands of the drum and its cover to hold the cover in closed position duringthe rotation of-the drum.

4. An apparatus of the class ldescribed comprising a casing, a screening drum mounted :forrotation within the casing and having a'feed opening, a movable cover for the-feed opening, a flexible element connected at one'end within the'casing and bearing against the drum, and means for detachably connecting the other end of the flexible element tothe casing. I

f lnitestimony whereof I. affix my signature in presence of a Witness.

5 JULIUS T. FREY. [Ls] l/Vitness:

VVM. H. MOOLENAHEN.

,Ccpies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G. 

